JPH08244399A - Transferring method for design - Google Patents

Abstract

PURPOSE: To provide a method for transferring a design in which the design having high design properties harmonized with a surface emboss is efficiently provided on a base material provided with the emboss. CONSTITUTION: The method for transferring the design comprises the steps of press binding a transfer sheet 5 provided with an arbitrary design to a transfer roll 6 made of soft rubber, transferring the design to the roll made of the rubber, and press bonding the roll made of the rubber to a decorative plate base material having an uneven surface coated with adhesive 7 on the surface in advance, thereby transferring the design.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pattern transfer method,
In particular, it relates to a method for transferring a fine pattern to various inorganic decorative board base materials used for exteriors of houses having surface embossing.

[0002]

2. Description of the Related Art Conventionally, various inorganic decorative boards have been used for the exterior of houses, but in recent years, products having embossed surfaces have been favored along with the tendency toward higher quality and higher design. If there is embossing on the surface, there is a simple manufacturing method such as painting a single color paint or sprinkling sand, but other methods of painting in synchronization with embossing include a transfer method using an elastic body, gravure offset, etc. is there. However, in the transfer method, transfer omission occurs in finely embossed recesses, and it is difficult to completely adhere the pattern layer. Further, gravure offset was not sufficiently satisfactory in terms of design.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above conventional problems, and it is an object of the present invention to emboss a surface-embossed base material. An object of the present invention is to provide a pattern transfer method for efficiently providing a harmonious and highly designable pattern.

[0004]

In order to solve this problem, the present invention press-bonds a transfer sheet composed of a base film, a release layer or a release layer, and a pattern layer onto a transfer roll composed of a soft rubber so that the pattern layer contacts. Then, the pattern layer is transferred to the transfer roll, the transfer roll after the transfer of the pattern layer is pressure-bonded to the surface of the base material having an uneven surface coated with an adhesive in advance, and the pattern layer is applied to the surface of the base material. Provided is a method for transferring a pattern, which is characterized by being transferred.

The present invention will be described in detail below. FIG. 1 shows an example of the cross-sectional structure of the transfer sheet used in the present invention. A release layer 2 and a pattern layer 3 are sequentially provided on the surface of a base film 1. A release layer may be provided on the surface of the base film instead of the release layer. In that case, the release varnish may be omitted.

As the base film 1, the type and thickness of the resin are selected in consideration of the tension and speed of the transfer machine. Specifically, polyethylene terephthalate (hereinafter PE
T), polyethylene (hereinafter PE), polypropylene (hereinafter PP), nylon, polyester and the like. According to the experiments conducted by the present inventors, PET having a thickness of 25 μm
The best results have been obtained with resin films.

The release layer or release layer 2 may be appropriately selected depending on the type of the base film, but when PET is used for the base sheet, good results are obtained with the melamine resin.

The pattern layer 3 can be provided by ordinary gravure printing, screen printing or the like. The binder of the ink is determined in consideration of the large elongation at the time of transfer to the embossed substrate and the durability of the final product.

FIG. 2 schematically shows an embodiment of the transfer method of the present invention. Using the roll 4, a transfer sheet 5 provided with an arbitrary pattern is pressure-bonded so as to be in contact with the transfer roll 6, the pattern is transferred, and the transfer roll is applied to a decorative plate base material 8 having an adhesive 7 applied on its surface. It is pressure-bonded and the design is transferred to the decorative plate base material.

As the roll 4, a load sufficient to press the transfer sheet onto the transfer roll is applied, and an iron roll, a roll whose surface is made of urethane, or the like can be used. The pattern transferred to the transfer roll is transferred to the base material by the transfer roll. The substrate sheet after transfer is wound up by a winding roll.

The transfer roll 6 is preferably a soft rubber roll having a tack on the surface so that the design of the transfer sheet which is pressure-bonded is transferred to the transfer roll side. The type of the soft rubber may be appropriately selected in consideration of the material and surface shape of the base material, but in the experiments conducted by the present inventors, good results were obtained with natural rubber and urethane rubber. The rubber hardness is preferably 40 to 60 when the substrate is a calcium silicate plate having a brick-like embossed shape. If it is less than 40 °, it is too soft and does not apply pressure, so it does not transfer.
If it is larger than ゜, it does not follow deep embossing.

As the adhesive 7 applied to the base material, urethane resin, polyvinyl alcohol resin, acrylic resin, hydroxymethyl cellulose resin, polyester resin, polyamide or the like is used, which is applied in advance on the base material.

As the decorative board base material 8, paper, film, wood, asbestos cement, calcium silicate board or the like can be used.

By a series of these operations, a decorative board with an extremely high design in which the embossing and the pattern are in harmony can be obtained. In addition, it is also possible to properly apply a clear coating on the surface to protect the surface.

[0015]

As described above, according to the present invention, the transfer sheet provided with an arbitrary pattern is pressure-bonded to the transfer roll, the pattern is transferred to the transfer roll, and the transfer roll is pressure-bonded to the base material. It is possible to eliminate the resistance due to the interposition, follow the recesses of the fine embossing, reduce the pattern loss, and efficiently manufacture a decorative plate with a high design.

[0016]

EXAMPLE A PET resin film having a thickness of 25 μm was used as a base film, a melamine resin was applied as a release layer on this surface and baked, and then gravure printing was performed using an ink with a vinyl chloride vinyl chloride resin as a binder for a pattern layer. A pattern that matches the embossed shape of the inorganic base material was printed by the method. A transfer sheet was obtained as described above.

On the other hand, as a decorative plate base material, a calcium silicate plate having a brick-like embossed surface was prepared, dust was removed, and a sealer treatment was performed, and then an acrylic urethane resin adhesive was applied and dried.

A roll formed of urethane having a surface hardness of 40 ° is used as a transfer roll made of soft rubber, and the above-mentioned transfer sheet is pressure-bonded thereto with an iron roll to transfer the pattern onto the transfer roll, and further the transfer roll is lined. Pressure 10kgf /
It was pressed to a calcium silicate plate whose surface was coated with an adhesive in cm, and the pattern was transferred.

On the surface of the decorative board obtained as described above, an acrylic urethane resin-based top coat was applied as a surface protective layer. The decorative plate thus obtained had an extremely high designability with a pattern in which the minute embossed shape was followed and synchronized.

[0020]

As described above, according to the present invention, the transfer sheet provided with an arbitrary pattern is pressure-bonded to the transfer roll, the pattern is transferred to the transfer roll, and the transfer roll is pressure-bonded to the base material. By following the minute embossed recesses, it is now possible to obtain a decorative board with less pattern omission and high design.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a cross-sectional structure of a transfer sheet according to the present invention.

FIG. 2 is an explanatory diagram showing the steps of an embodiment of the pattern transfer method of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Base film 2 ... Release layer 3 ... Design layer 4 ... Transfer sheet 5 ... Roll 6 ... Transfer roll 7 ... Adhesive 8 ... Decorative board base material

Claims (3)

[Claims] 1. A transfer sheet comprising a base film, a release layer or a release layer, and a pattern layer is pressure-bonded to a transfer roll so that the pattern layer is in contact, the pattern layer is transferred to the transfer roll, and an adhesive is preliminarily applied to the surface. A method for transferring a pattern, characterized in that a transfer roll after the transfer of the pattern layer is pressure-bonded to the surface of the applied substrate, and the pattern layer is transferred to the surface of the substrate. 2. A transfer sheet comprising a base film, a release layer or a release layer, and a pattern layer is pressure-bonded to a transfer roll made of soft rubber so that the pattern layer is in contact with the transfer layer, and the pattern layer is transferred to the transfer roll in advance. A method for transferring a pattern, characterized in that a transfer roll after transferring the pattern layer is pressure-bonded to a surface of a base material having an uneven surface coated with an adhesive, and the pattern layer is transferred to the surface of the base material. 3. The rubber hardness of the soft rubber roll is 40-6.
The pattern transfer method according to claim 2, wherein the pattern is 0 °.